X9241A_07 Datasheet, PDF (7/16 Pages) Intersil Corporation – Quad Digital Controlled Potentionmeters (XDCP™)

X9241A
TABLE 1. INSTRUCTION SET (Continued)
INSTRUCTION FORMAT
INSTRUCTION I₃ I₂ I₁ I₀ P₁
P₀
R₁
R₀
OPERATION
XFR Data
1 1 0 1 1/0 1/0 1/0 1/0 Transfer the contents of the Register pointed to by P₁ to P₀ and R₁ to
Register to WCR
R₀ to its associated WCR
XFR WCR to
Data Register
1 1 1 0 1/0 1/0 1/0 1/0 Transfer the contents of the WCR pointed to by P₁ to P₀ to the Register
pointed to by R₁ to R₀
Global XFR
0001
X
Data Register to
WCR
X
1/0 1/0 Transfer the contents of the Data Registers pointed to by R₁ to R₀ of all
four pots to their respective WCR
Global XFR
WCR to Data
Register
1000
X
X
1/0 1/0 Transfer the contents of all WCRs to their respective data Registers
pointed to by R₁ to R₀ of all four pots
Increment/
Decrement
Wiper
0 0 1 0 1/0 1/0
X
X Enable Increment/decrement of the WCR pointed to by P₁ to P₀
NOTES:
1. 1/0 = data is one or zero
2. X = Not applicable or don’t care; that is, a data register is not involved in the operation and need not be addressed (typical).
SCL FROM
MASTER
1
DATA OUTPUT
FROM TRANSMITTER
8
9
DATA OUTPUT
FROM RECEIVER
STAR T
FIGURE 7. ACKNOWLEDGE RESPONSE FROM RECEIVER
ACKNOWLEDGE
7
FN8164.6
August 31, 2007